EIA Studies of 3 Pre-Identified Hazardous Waste Disposal Sites in ...

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Rapid EIA Studies of 3 Pre-identified Hazardous Waste Disposal Sites in NCT - Delhi Page No.136 No. ACTIVITY ENVIRONMENTAL HAZARDS generation monsoon season 7. Sanitary facilities for the staff 8. Laboratory facility 9. Monitoring activity (Monitoring activity should continue even after closure of the facility) 10. Operation maintenance & closure of the facility in • Blowing away of the waste dust with the wind MANAGEMENT ACTION TO BE TAKEN HDPE sheets and ensure that rain water does not come in contact with the waste • Spray water with dust suppressing chemicals Cover the waste layer with fresh soil and compact it • Disposal of waste at wrong place Erect indicators and sign boards for systematic operation • Leachate generation • Provide leachate collection and conveyance system. Leachate has to be treated before discharge Generation of waste water Generation of the waste water • Broken glassware and other solid wastes • Ground water pollution • Soil pollution due to leachate • Air Pollution • Contamination of environment • Wastewater has to be given suitable treatment prior to discharge or it can be mixed with leachate and taken for treatment. • Wastewater has to be given suitable treatment before discharge or it can be mixed with leachate after studying the compatibility. • Dispose them off in the facility • Dig/drill bore wells around the site based upon ground water flow and take samples of ground water periodically for analysis. In case of pollution of ground water is noticed, develop adequate redemption plan and execute it and keep monitoring • In case any pollution of ground water is noticed, then soil samples at various depths around the SLF should be analysed and suitable remediation steps be undertaken. • Ambient air monitoring should be carried out periodically & if air pollution is found, appropriate action has to be taken. • As a compensatory measure, green belt has to be developed in 10 - 15 mt Strip of land encircling the site. • On both sides of the approach road, at least 5 m wide green belt has to be developed. 8.2 ENVIRONMENTAL QUALITY MONITORING Environment Division, National Productivity Council, New Delhi 7

Rapid EIA Studies of 3 Pre-identified Hazardous Waste Disposal Sites in NCT - Delhi Page No.137 Environmental monitoring has to be conducted at secured landfill facility to ensure that no contaminants that may affect public health and surrounding environment are released from the environment. The monitoring required is divided in to following categories: 1. On and within the landfill, 2. In the unsaturated subsurface zone (Vadose zone) beneath and around the landfill, 3. In the ground water (saturated) zone beneath and around the landfill, monitoring and 4. Ambient air quality monitoring in and around the landfill at upstream and downstream locations of the site. Parameters to be Monitored Regularly are: • Leachate head within the landfill. • Leachate quality within the landfill. • Quality of pore fluid in the vadose zone. • Quality of ground water in the saturated zones. • Ambient air quality above the landfill and at buildings on or near the landfill. 8.3 EMERGENCY MANAGEMENT PLAN As per the Guidelines for Management and Handling of Hazardous Wastes published by the Ministry of Environment and Forests in 1991, an Emergency Plan has to be drawn in order to minimise the hazards to human health or environment from Fires, Explosion or any unplanned sudden or non-sudden release of hazardous waste or hazardous waste constituents to air, soil or surface water. The secured landfill facility has been designed and developed for the hazardous wastes which are neither Flammable nor Explosive. The possible adverse impacts and risks due to construction and operation of Secured Landfill Facility have been identified and accordingly mitigation measures have been suggested in the Environmental Management Plan discussed in earlier chapter. However, some unforeseen emergencies require a plan/guideline to act upon in case of mishap. It is necessary however, that precautions must be taken at all times and at all stages of handling hazardous wastes to avert any adverse situation/accident. In general, major emergencies are not expected (which may require mobilisation of resources other than available with the owner of the facility) due to development and operation of Secured Landfill Facility at proposed site. However, in case of any emergency, the team of key Environment Division, National Productivity Council, New Delhi 7

Rapid <strong>EIA</strong> <strong>Studies</strong> <strong>of</strong> 3 <strong>Pre</strong>-identified <strong>Hazardous</strong> <strong>Waste</strong> <strong>Disposal</strong> <strong>Sites</strong> <strong>in</strong> NCT - Delhi<br />

Page No.137<br />

Environmental monitor<strong>in</strong>g has to be conducted at secured landfill facility to ensure<br />

that no contam<strong>in</strong>ants that may affect public health and surround<strong>in</strong>g environment are<br />

released from the environment. The monitor<strong>in</strong>g required is divided <strong>in</strong> to follow<strong>in</strong>g<br />

categories:<br />

1. On and with<strong>in</strong> the landfill,<br />

2. In the unsaturated subsurface zone (Vadose zone) beneath and around the<br />

landfill,<br />

3. In the ground water (saturated) zone beneath and around the landfill, monitor<strong>in</strong>g<br />

and<br />

4. Ambient air quality monitor<strong>in</strong>g <strong>in</strong> and around the landfill at upstream and<br />

downstream locations <strong>of</strong> the site.<br />

Parameters to be Monitored Regularly are:<br />

• Leachate head with<strong>in</strong> the landfill.<br />

• Leachate quality with<strong>in</strong> the landfill.<br />

• Quality <strong>of</strong> pore fluid <strong>in</strong> the vadose zone.<br />

• Quality <strong>of</strong> ground water <strong>in</strong> the saturated zones.<br />

• Ambient air quality above the landfill and at build<strong>in</strong>gs on or near the landfill.<br />

8.3 EMERGENCY MANAGEMENT PLAN<br />

As per the Guidel<strong>in</strong>es for Management and Handl<strong>in</strong>g <strong>of</strong> <strong>Hazardous</strong> <strong>Waste</strong>s published by the<br />

M<strong>in</strong>istry <strong>of</strong> Environment and Forests <strong>in</strong> 1991, an Emergency Plan has to be drawn <strong>in</strong> order to<br />

m<strong>in</strong>imise the hazards to human health or environment from Fires, Explosion or any unplanned<br />

sudden or non-sudden release <strong>of</strong> hazardous waste or hazardous waste constituents to air, soil<br />

or surface water.<br />

The secured landfill facility has been designed and developed for the hazardous wastes which<br />

are neither Flammable nor Explosive. The possible adverse impacts and risks due to<br />

construction and operation <strong>of</strong> Secured Landfill Facility have been identified and accord<strong>in</strong>gly<br />

mitigation measures have been suggested <strong>in</strong> the Environmental Management Plan discussed<br />

<strong>in</strong> earlier chapter. However, some unforeseen emergencies require a plan/guidel<strong>in</strong>e to act<br />

upon <strong>in</strong> case <strong>of</strong> mishap. It is necessary however, that precautions must be taken at all times<br />

and at all stages <strong>of</strong> handl<strong>in</strong>g hazardous wastes to avert any adverse situation/accident.<br />

In general, major emergencies are not expected (which may require mobilisation <strong>of</strong> resources<br />

other than available with the owner <strong>of</strong> the facility) due to development and operation <strong>of</strong><br />

Secured Landfill Facility at proposed site. However, <strong>in</strong> case <strong>of</strong> any emergency, the team <strong>of</strong> key<br />

Environment Division, National Productivity Council, New Delhi<br />

7

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